Charles desjardins



No. 637,953. Patented pe. 3, |9ol.

c. nEsJAnmNs.

GRAIN DRILL.

App'licmon med rnb. 11,1901.)

(Nn Modal.)

'trs- 5o of the frame, however, is not material.

UNITED STATES PATENT EEICE.

CHARLES DESJARDINS, OF ST. PIERRE, CANADA.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent N o. 687,953, datedDecember 3, 1901. Application tiled February 115 1901. Serial No.46,832, (No model.)

To a/ZZ whom t may concern:

Be it known that I, CHARLES DEsJAEDINs,

a subject lof His Majesty the'King of Great Britain, residing at St.Pierre, county of Prov- 5 encher, Province of Manitoba, Canada, haveinvented certain new andA useful Improvements in Grain-Drills; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in grain-drills of that class whichemploy a revoluble colter-disk in connection with a seed tube or spout;and the objects of the invention are, first, to provide a guard orfurrowopener adapted to prevent the accumulation of earthin theseed-distributin g space, as well as to serve as a scraper and assist inkeeping clean that surface of the colter-disk which faces the plowedland, and, secondly, to provide a scraper which is held yieldablyincontact with the opposite face of the colter-disk.

With these-ends in view the invention consists in the novel constructionand arrangement of parts, which will be hereinafter fully described andclaimed.

In the drawings hereto annexed, forming a part of this specification,Figure 1 is a perspective view of a portion of a grain-drill em! bodyingmy present improvement looking` at one side of the colter-disk. Fig. 2is a similar view looking at the opposite face of the colterdisk. Fig. 8is a transverse section through the roller-bearin g support for thecolter-disk and representing the furrow-opener and the fender or guardin cross-section. Fig. 4 is a detail view of the parts comprising thescraper, illustrating a part of the colter-disk and its hub by dottedlines. Fig. 5 is a detail view similar to Fig. 4., but showing thescraper in its inoperative idle position.

The same numerals of reference denote like parts in each of the severalfigures of the drawings.

5 designates the frame, which is shown as consisting of side bars.joined together at their rear ends and bolted or otherwise united attheir front ends. The detailed construction This frame supports atransverse axle 6, which is externally threaded at its end portions, asat 7. Said axle receives the ball-bearing cones 8, which are screwed onthe threaded portions of the axle and are fitted in suitable openingsprovided in the sides of the frame, as clearly shown by Fig. 3, and uponthe end portions of said axle are screwed the clamping-nuts 9, whichbear against the outside of the frame and maintain the axle securely ina stationary position, whereby the axle and the cones are held in placeon the frame. The colter-disk 10 is clamped in any approved way upon ahub 11, and this hub is provided with internal cups 12, which surroundthe axle and are disposed in opposing relation to the cones 8, saidopposing faces of the cups and cones forming ballraces adapted for thereception of the bearing-balls 13, all as clearly shown by Fig. 3. Asthe axle is supported xedly in the frame, and as the hub of thecolter-disk is mounted loosely on the axle through the medium ofthebearing-balls, it is clearthat the colterdisk is capable of freerotation on the axle and within the frame, thus reducing the fricl tionand wear on the colter-disk. This colterdisk consists of a iiat plate ofsteel cut to the and the rim may be formed as integral parts. This rimis offset laterally from one face of A the disk, so as to produce ashallow recess 15, and the edge of the rim is beveled, as represented bythe drawings, so as to have the rim flush with one face of the disk,while its beveled portion projects laterally from the other side of thedisk and produces the annular recess l5.

The furrow-opener 16 is in the form of a plate and isdisposed incooperative relation to one surface of the disk, the top edge of saidplate being flanged,as at l7,and fastened to one side bar of the frame5. One edge of this furrowopener is curved, so as to iit in a part ofthe recess 15 of the colter-disk; but the lower rear portion of thisfurrow-opener is deflected laterally or odset from the colter -disk inorder to produce a tapering throat or space through which the graindeposited in the IOC chamber 18 by the seed spout or tube 19 is free toescape. The space 18 vis produced by the cooperative disposition of thefurrowopener 16 to one side of the colter-disk 10, as shown by Fig. 3,and with this space communicates the lower portion of the spout or tube19, the latter being stayed in place by the brace 20, having its upperend secured to the tube and its' lower end attachedwto one side of theframe. (See Fig. 2.)

It will be understood that the curved front edge of the furrow-opener 16lies in the annular recess 15, so that the rim 14 of the colter-diskprojects beyond the plane of the front edge of the furrow-opener, thusbringing the furrow-opener and the disk in such relation that the rim 14excludes the admission of dirt to the space 18, besides minimizing thefriction and wear on the furrowopener itself, which is exposed to theaction of the earth when the drill is in operation.

To still further carry out the operation of excluding the dirt fromadmission to the grain-space 18, I have provided a fender 21, the sameconsisting of a plate which is iianged, as at 22, and is arranged torest upon the top edge of one side bar of the frame 5, said fender beingdisposed in advance of the spout or tube 19. I prefer to attach theiianged edge 17 of the furrow-openerand the lianged edge 22 of thefender to one side bar of the frame by the use of through-bolts, whichare indicated at 23 in Figs. 1 and 3, although the parts may be securedindividually, if desired. The fender 21 is bent or inclined upwardlyfrom the frame and arranged so that its edge will engage with onesurface of the colter-disk, whereby the fender is so intimately relatedto the disk as to exclude the dirt from entering the grainchamber 18through the upper part thereof, and said fender is also adapted to serveas a scraper in clearing the surface of the colterdisk on one sidethereof. The other surface of the colter-disk is kept ina cleancondition by a scraper 24, the same having a hinged connection at 25with the curved upper end of a short post or arm 26. This arm is securedto a part of the frame 5 in any suitable way and is arranged in aposition to support the scraper in active relation to the disk 10. `(SeeFig. 4.) The pivotal connection of the scraper to the arm permits thescraper to have a limited movement laterally with respect to thecolter-disk; but said scraper is held in its active position by theaction of the spring 27, which is shown as attached to the scraper nearits hinged connection with the arm, said spring bearing against thecurved portion of the arm 26 in a manner to normally force the scraperinwardly and into engagement with the colter-disk. The spring is alsohoused within the curved end of the arm, so as to be protected therebyfrom accumulations of dirt, thus in a measure keeping the spring clearfrom interference by the lodgment of the soil thereon.

The spring 27 is shown by Fig. 5 as having a pivotal connection with thepivoted scraperblade, and in this figure the spring is shown adjusted toits inoperative position, so that it is free from the overhanging end ofthe arm 26, thus allowing the scraper to assume the idle position shown.Said spring, furthermore, may be compressed and turned on its pivotalconnection with the scraper-blade in a manner to bring the spring intothe position shown by Fig. 4, wherein the free end of the spring bearsagainst the overhanging arm, and said spring is thus made to force andhold the scraper-blade to its working position.

Changes within the scope of the appended claims may be made in the formand propor- .tion of some of the parts, while their essential featuresare retained and the spirit of the invention is embodied. Hence I do notdesire to be limited to the precise form of all the parts as shown,reserving the right to vary therefrom.

Having thus described my invent-ion, what I claim as new is- 1. Thecombination with a frame,of a colterdisk revolubly mounted in the frameand provided with a rim forming a recess in one face thereof, afurrow-opener supported by the frame and having a curved edge partlydisposed within said recess and the rim of said disk, said furrow-openerforming with the disk an intermediate grain-chamber, and a fender alsosupported by the frame and disposed close to the disk, whereby thefender closes the top of the grain-chamber, substantially as described.

2. The combination with a frame,of a colterdisk revolubly mountedtherein, a furrowopener secured to the frame and forming a grain-chamberwith the disk, and a fender se'- cured to the frame, disposed incooperative 'relation to one surface of the disk, and closing the top ofthe grain-chamber, substantially as described.

3. The combination with a frame, and a colter-disk revolubly mountedtherein, of a furrow-opener attached to the under side of the frame anddisposed in cooperative relation to one surface of the disk, and afender secured to the top side of the frame and inclined therefromtoward said disk and over the open top side of a grain-chamber which isformed between the disk and the furrow-opener, substantially asdescribed.

4. In a grain-drill, the combination with a revoluble disk, ofascraper-support, a scraper pivotally mounted on the support, and apressure-spring interposed between the pivoted scraper and the supportto normally hold the latter in engagement with the disk, said springbeing shiftable from its operative position and adapted to release thescraper and IOO IIO

support and thereby permit the scraper to assume an idle position,substantially as described.

In witness whereof I have hereunto set my hand in the presence 0f twoWitnesses.

CHARLES IESJARDINS.

Witnesses:

JOSEPH LAMOUREUX, OVIDE PREFONTAINE.

